I replaced battery and alternator and battery keeps dying
Dec 6, 2010 at 9:23 PM
battery draw
1999 CHEVROLET SUBURBAN
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Use an inexpensive digital voltmeter to measure battery voltage. Engine off it should read near 12.6 fully charged, 12.0 if it's good but discharged, and at 11 volts or less suspect a shorted cell.
Engine running it must read between 13.75 and 14.75 volts. If it's low, check for voltage on the output terminal on the generator. If the battery light on the dash never turns on, check the wire that plugs into the rear, side of the generator.
caradiodoc
Engine running it must read between 13.75 and 14.75 volts. If it's low, check for voltage on the output terminal on the generator. If the battery light on the dash never turns on, check the wire that plugs into the rear, side of the generator.
caradiodoc
Dec 6, 2010 at 10:02 PM
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.